From 82cd662f00327eb89fa2951c3f343112b6150e36 Mon Sep 17 00:00:00 2001
From: apnadkarni <apnmbx-wits@yahoo.com>
Date: Tue, 26 Dec 2017 03:30:22 +0000
Subject: Safer to compare TCLDIR against "" rather than ifdef as recursive
 nmakes can pass TCLDIR as defined but with an empty value.

---
 win/rules-ext.vc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win/rules-ext.vc b/win/rules-ext.vc
index 58c70fa..531e070 100644
--- a/win/rules-ext.vc
+++ b/win/rules-ext.vc
@@ -35,7 +35,7 @@ macro to the name of the project makefile.
 !endif
 
 # First locate the Tcl directory that we are working with.
-!ifdef TCLDIR
+!if "$(TCLDIR)" != ""
 
 _RULESDIR = $(TCLDIR:/=\)
 
-- 
cgit v0.12